Screening Device Inclination Adjustment for Panel Production

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing circularly moving screening devices in wood-based panel production struggle with inflexible inclination angles, which limits their ability to optimize dust or fine material screening and throughput, requiring costly and complex adjustments during operation.

Innovation Solution

A screening device with an electric motor or hydraulic adjustment system that allows continuous adjustment of the sieve unit's inclination angle between 4° and 12° without stopping the device, using sensors and control units for automatic optimization based on volume flow and material coverage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the screening device uses a fixed rigid structure with fixed angle of inclination, then the structural stability and simplicity is maintained, but the adaptability to different materials and optimization of screening process is limited

Engineering Contradiction:
Improveadaptability to different materialsVSAvoidstructural complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies the dynamics principle by transforming the fixed rigid structure into a dynamic system with adjustable angle of inclination. The screening unit is suspended by articulated rods connected to adjustment devices that can change the inclination angle during operation, allowing the structure to adapt to different screening requirements while maintaining operational flexibility.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements parameter changes by enabling continuous adjustment of the inclination angle parameter. The adjustment devices modify the geometric parameter of the screening unit's orientation, allowing optimization of screening performance for different materials and throughput requirements without changing the overall structural design.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If the angle of inclination is fixed, then the device simplicity and ease of manufacture is maintained, but the productivity and throughput optimization is limited

Engineering Contradiction:
ImprovethroughputVSAvoiddevice complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent enables dynamic adjustment of the inclination angle during operation, allowing the screening device to optimize throughput for different materials and operating conditions. This dynamic capability increases productivity by enabling real-time optimization without requiring device replacement or complex reconstruction.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The adjustment devices serve multiple functions: they adjust the inclination angle for optimization, maintain structural support, and enable adaptation to various screening requirements. This multi-functionality increases productivity without proportionally increasing device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If the screening unit inclination is adjusted by mechanical disassembly and reassembly, then the adaptability is improved, but the ease of operation and operational continuity is worsened

Engineering Contradiction:
Improveadjustability of inclination angleVSAvoidease of adjustment
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent transforms the static fixed inclination design into a dynamic adjustable system that can be modified during operation. The articulated rods and adjustment devices enable continuous inclination changes without stopping the screening process, dramatically improving ease of operation and operational continuity.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The adjustment devices allow the inclination angle to be modified while the screening unit continues to operate, maintaining continuous useful action. This eliminates downtime associated with mechanical disassembly and reassembly, making the adjustment process simple and operationally continuous.

Inventive Principle:
Principle #20Continuity of useful action

4Adaptability or versatility

If the screening device uses a large fixed structure, then the manufacturing precision and structural stability is maintained, but the adaptability to different throughput requirements is limited

Engineering Contradiction:
Improveadaptability to throughput requirementsVSAvoidscreening precision
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The patent maintains manufacturing precision by adjusting operational parameters (inclination angle) rather than changing the physical structure. The adjustment devices modify the angle parameter to optimize screening precision for different materials and throughput requirements, preserving the integrity of the original precisely manufactured structure.

Inventive Principle:
Principle #35Parameter changes

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables flexible and efficient operation by optimizing the angle of inclination during screening, improving throughput and reducing the need for mechanical disassembly, resulting in a more cost-effective and adaptable screening process.

Implementation Method 1

the screening unit can move along a circular trajectory

Methodology Applied
Scientific EffectGravitation: Gravitation

Implementation Method 2

the screening unit is suspended from the support frame by means of suspension elements

Methodology Applied
Scientific EffectMechanical suspension: Hinge

Implementation Method 3

the drive device is configured to set the screening unit into a circular motion along the circular trajectory

Methodology Applied
Scientific EffectElectromagnetic conversion: Electromagnetic Induction

Implementation Method 4

the electromechanical or hydraulically operated adjustment device(20), which is configured to adjust the suspension of the screening unit(2) on the support frame(1) by means of the suspension elements(3) in order to change an angle of inclination of the screening unit

Methodology Applied
Scientific EffectMechanical adjustment: Lever

Data Source

PatentEP3930926B1Screening device, in particular for use in a system for producing material panels
Publication Date: 2023.10.11 DIEFFENBACHER GMBH MASCH UND ANLAGENBAU
  • EP3930926B1 patent drawingFigure 1
  • EP3930926B1 patent drawingFigure 2
  • EP3930926B1 patent drawingFigure 3

AI summary

The invention relates to a screening device for use in a system for producing material panels, which screening device comprises a support frame (1) and a screening unit (2), which is suspended on the support frame (1) by means of suspension elements (3) in such a way that the screening unit (2) can move on a circular trajectory. The screening unit (2) has at least one screening module (4) and a drive apparatus (8), which moves the screening unit (4) in a circular motion on the circular trajectory. Furthermore, at least one electric-motor-operating and/or hydraulically operating adjusting device (20) is provided, which is designed to adjust the suspension of the screening unit (2) on the support frame (1) by means of the suspension elements (3) in order to adjust an angle of inclination of the screening unit (2). The angle of inclination can be adjusted in particular during the operation of the screening device.